求大神指导这个哪错了

#include<stdio.h>
int main()
{
float r,h,C1,Sa,Sb,Va,Vb;
float PI=3.14;
scanf("%f,%f\n",&r,&h);
C1=2*PI*r;
Sa=PI*r*r;
Sb=4*PI*r*r;
Va=4.0/3*PI*r*r*r;
Vb=PI*r*r*h;
printf("圆周长C1=%5.2f\n",C1);
printf("圆面积Sa=%5.2f\n",Sa);
printf("圆球表面积Sb=%5.2f\n",Sb);
printf("圆球体积Va=%5.2f\n",Va);
printf("圆柱体积Vb=%5.2f\n",Vb);
return 0;